Installing Welding Gun; Installing Work Clamp - Hobart Handler 140 Technical Manual

4-2. Installing Welding Gun

.
Be sure that gun end is tight
against drive assembly.
Exposed O-rings
Incorrect
will cause shielding
Gun Not Seated

4-3. Installing Work Clamp

.
Connection hardware must be tightened with proper tools. Do not just
hand tighten hardware. A loose electrical connection will cause poor weld
performance and excessive heating of the work clamp.
Tools Needed:
10 mm
TM-258 267 Page 6
1
3
gas leakage.
2
1
4
3
2
Correct
Gun Fully Seated
6
5
4
1 Drive Assembly
2 Gun Securing Thumbscrew
3 Gun End
Loosen thumbscrew. Insert end of
gun through opening in front
panel until it bottoms against
drive assembly.
thumbscrew.
Welding gun must be inserted
completely to prevent leakage of
shielding gas.
4 Gun Trigger Leads
Insert leads, one at a time, through
gun opening on front panel.
Connect female friction terminals to
matching male terminals in unit.
Polarity is not important.
Close door.
1 Work Clamp
2 Work Cable From Unit
3 Screw
4 Flat Washer
5 Lock Washer
6 Nut
Route work cable through hole in
clamp handle. Secure cable with
hardware as shown.
3
Tighten
258 315-A
258 550-A
Handler 140